Portion of an article of footwear



FIG. 1 is a bottom perspective view of a portion of an article offootwear showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The broken lines showing a footwear upper and periphery in FIGS. 1-6represent the portions of the design that form no part of the claim. Thesix inscribed, innermost circles in FIGS. 1, 2, & 5 define the interiorboundary of the design. The broken lines showing human forms within thecircles also illustrate portions of the design that form no part of theclaim.

The ornamental design for a portion of an article of footwear, as shownand described.